Seed-corn magnifier.



N0. 879,717. EATENTED EEB. 18,1908.

G. ANDERSON. SEED CONN MAGNIEIER. APPLICATION FILED JUNE 29, 1907.

www eases GEORGE ANDERSON, OF AWAK EFIELD, NEBRASKA.

Senn-conn Macnmmn.

To all whom zi-may concern:

Be it known that I, GEORGE'YANDERSON, a citizen of the United States, residing at Wakefield, in the county of Dixon* and State of Nebraska, have invented new'and useful lImprovements in Seed-Corn Magnifiers, of. which the following is a specification.

This invention relates to improvements in magnifying) glasses, the main object, of the invention emg to provide a pocket magnifying glass adapted to be supported for use upon the blade of a pocket knife, said glass -being designed for a variety of uses, among them for ma nifying seed corn, whereby the germ of the ernel may be examined to de'- termine whether or not the corn is t for use made.

. of two mem as seed'. y

The invention consists of the features of construction, combination and arrangement of parts hereinafter fully described and claimed, reference being had to the accompanying drawing, in which .Figure 1 is a side view showing the application of the device to a knife. Fig. 2 1s a plan view of the frame of the blank from which the bracket, rshown in Fig. 1, is Fig. 3 is a similar view of the blank from which the frame .of the glass is formed. Fig. 4 is a'verticaltransverse section through the knife blade and magnifying attachment, showing a modified form of bracket.

Referrin to the drawing, 1 designates the frame of t e' glass, and 2 the magnifying glass held thereby. The frame is preferably of the construction disclosed fully in detail in Fig. 4, com risinga holding ringB, formed bers 4 and 5, the member 5 being provided with an inturned flange' 6, bent over upon the outside of the member 5 to clamp it to the member 4 and to also clamp the glass 2 between the said members. The ring thus formed is supported by a bowed or looped-shaped arm 7, pivotallymounted between the arms 8 of a claspbracket 9, of the construction hereinafter described.

The frame 1 is made from the form of blank shown in Fig. 3, from which it will be seen that the ring members 4 and 5 are formed upon the opposite ends of a strip of sheet metal, stam ed up by the action of a suitable die, the ange' being produced by folding the outer edge of the member 4 on the dotted line 6a and providing slits 6b conveniently fo ded.

separatin the ends of the flange from the body of t e rin 'to adtitsaid flange to be e1 ring member 5 Specification of Letters Patent. Application sind June 29.1907. semi No. 381,522.

Amanner shown in Fig. 1.

lby a rivet 10 Patente-a Feb. 1s, 190s.

conforms in diameter to the body of the ring member 4 .and the two ring members are connected by a stem, 7 having eyes or enlar e ments 7 b, said stem bein adapted to be fo dy ed on the dotted line 7C etweensaid eyes to bring the latter into parallel planes to produce looped the arm 7. After the stem has l been folded to form the loop arm and to bring the rings 4 and 5 opposite each other, the lass 2 1s laced between said rings and coned by olding the flange 6 over upon the ring 5, thus providing a cheap and efficientv t e of holding frame.l

y the form shown in Fig. 1, the clasp 9 is produced from the blank disclosed in Fig. 2, the said blank 9a being slitted to provide perforated members 9b adapted to be folded u wardly on the dottedy lines 9 to produce t e supporting arms 8, the blank itself comprising two Wings formed by folding it centrally on the spaced dotted 'lines' 9b into approximately U-form so that it will serve the function -of a 4spring clasp to engage the knife blade and support the glass thereon in the The looped arm 7 of the glass frame fits down between the arms or apertured supporting-ears 7b of the clasp and is pivotally connected therewith plassing through theeyes or a ertures in sai arm and ears, by which the l g ass is pivotally mounted upon the bracket to be set at different angles for greater convenience in use, as will be readily understood.

In the form of the invention shown in Fig. 2, the clasp comprises a single piece of sheet metal bent into U-form vto rovide supporting arms 11 perforated for tfiefpassage of the pivot pintle or rivet 10. At the oint of .]unction of said arms, the metal is mstruck or inbent to provide a U-shaped union 12 of proper form to serve as a spring clasp to receive and engage over the ack edge of the blade and, thus, support the attachment thereon.

It Will be seen that the invention provides a simple .and effective magnifying glass attachment by which the glass may be conveniently supported upon the extended blade of a knife for convenience-in testing seed corn and for a variety of other uses. Furthermore, the construction of the frame and bracket described permits the device to be manufactured at a very low cost.

Having thus described the invention, what is claimed, is:-

1. A device of the character described comprising a supporting bracket, a frame I ing arm, rings carried by the terminals of the carried by the said bracket and formed of a arm, one of said rings having a flange folded single piece of sheet metal, said frame having oyer upon the other rings to vunite said rings, 15 a folded supporting arm and rings carried by and a magnifying glass held between the two said arm, together ,with a magnifying glass rings. l

held between the rings one of said rings be- In testimony whereof, I aflix my signature -ing formed with a flangela in over u on in resence of two Witnesses.

PP g P P the `other to secure the rings together.

2. 'A device of the character described comprising a supporting bracket, a sheet metal frame held by the bracket, said frame having a folded portion providing a support- GEORGE ANDERSON.

` Witnesses:

CHAs. A. HENRY, ALFRED HENRY. 

